Charles k



No. 65,226. Patented Nov. 29, I898.

. 6.. K. PICKLES.

STEP-OVER CAR SEAT.

,-(Application filed Jan. 14, 189 8.)

(No Model.)

13 V V 13 16 V 15 6- 1 A 46 liar/P1260 2 THE nonms PEYERS co. worou'mq. WASHINGTON, 0. c4

UNITED STATES PATENT ()FFICE.

CHARLES K. PICKLES, OF ST. LOUIS, MISSOURI, ASSIGNOR TO SAMUEL M.

DODD, OF SAME PLACE.

STEP-OVER CAR-SEAT.

SPECIFICATION forming part of Letters Patent No. 615,226, dated November 29, 1898.

' Application filed January 14, 1898. Serial No. 666,688. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES K. PICKLES,

a citizen of the United States, residing at St.

Louis, in the State of Missouri, have invented such car-seats in which the back has a stepover movement, while the seat has an opposite movement in unison therewith to afiord a maximum amount of seating capacity and the required slope to the seat proper in either position of the car-seat, examples of which may be found in my prior applications for Letters Patent, Serial Nos. 655,815 and 655,816, filed October 20, 1897, and Nos. 661,722 and 661,723, filed December 13, 1897. l

The objects of the present improvements are to provide a durable and effective operating mechanism for connecting the back, base, and seat together, and with which independent oscillatory movement is imparted to the back independent of the vibratory movement of such back from one side of the seat to the other. I attain such objects by the mechanism illustrated in the accom pan yin g drawings, in which- Figure 1 is an end elevation of a step-over car-seat embodying the present invention, one position of the back being shown in full lines and the other position in dotted lines; Fig. 2, a detail perspective View of supportin g-arm, operating-bars of the back, and their immediate connections; Fig. 3, a detail sectional elevation illustrating the supportingarms, operating-bars of the back, and their connections to the chair base or standards, the parts being shown at the end of their movement in one direction; Fig. 4, a similar view showing the parts in a position midway of their step-over movement.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 represents the supporting base or standard of any approved construction, which in'the'present invention is provided with a centrally-arranged pivot stud or bolt 2 and cam grooves or guides 3, symmetrically arranged wit-h relation to the pivot 2. When the present improvements are used in connection with a shifting type of car-seat, as illustrated in Fig. 1, the said base or standard will be provided with ,supporting-studs 4, that have engagement with a track-slot of the end supporting-plate of the seat proper, as hereinafter set forth.

5 is the seat proper of any usual type, which in the construction shown is adapted to have a shifting movement from side to side in-a curved path by means of curved track slots or recesses 6 in the endplate 7 of the seat engaging the supporting-studs 4 of the supporting base or standard 1.

9 is the seat-back, which in the present invention is of the step-over type and finished or upholstered on both sides alike and provided with a cross-head 10 on its end for the pivotal attachment of the vibratory back-supporting arm and the operating-bars by which .an oscillatory movement is imparted to the back.

11 is the vibratory back-supporting arm, having pivotal connection at its upper end with the end of the back midway of its thickness and at ornearits lower end with the pivot stud or bolt 2 of the supporting base or standard 1.v

12.are the cooperating bars, by means of which an oscillatory movement is imparted to the back. These bars are of a reversed counterpart construction, their upper ends having pivotal connection with the cross-head 10 of the back at points equidistant from the median line of the back and at opposite sides of the vibratory back-supporting arm 11,while at the lower ends such bars have'pivotal connection with the opposite ends of an equalizing-bar 13, that is centrally pivoted on the vibratory supporting-arm 11 of the back. In my preferred construction, as shown in the drawings, the pivot bolts or studs 14, by which the operating-bars 12 are pivotally connected to the equalizing-bar 13, project outwardly and are adapted to engage in the symmetrically-arranged grooves or guides 3 on the supporting base or standard 1, and by means of such construction impart the requisite movements to the said operating-bar simultaneously in opposite directions in an operation of the parts. 1

In the construction shown with a vibratory movement of the back-supporting arms 11 from one side to the other of the seat the studs 1% on the lower ends of the operatingbars 12 will ride in the cam-guides 3 and impart to said bars a gradual and continuous end movement in opposite directions, and by the connection of said bars at points equidistant from the pivot-axis of the supporting arm 11 the end movements of said bars in opposite directions will impart a simultaneous oscillatory movement to the back concurrent with the vibratory movement of said back from side to side of the seat, the closed ends or terminals of the cam-guides 3 acting as steps or abutments to limit the movement of the parts, as indicated in Figs. 1 and 3 of the drawings.

In the construction illustrated in the drawings 15 is a projecting stud upon an extension of the back-supporting arm 1.1, that is adapted to have engagement in a verticallyelongated slot or recess 16 in the end plate 7 of the seat 5, and thus afford means for imparting the required movement to the seat in a curved path simultaneously with the vibratory movement of the back from side to side of the seat.

Vith the formation of the back-operating bars 12, as shown in the drawings, the same are adapted to rest against the opposite sides of the back-supporting arm 11 in either position of the back, and as so arranged greater stiffness and rigidity are attained and at the same time constitute a stop to prevent a further vibratory or oscillatory movement of the back.

It is evident that with very slight modifications the construction of the present invention, as shown in the drawings, is equally applicable to that type of car-seats in which the seat proper has an oscillatory movement as distinguished from a shifting movement.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, 154-- 1. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supportin g arm having pivotal connection with the standard and with the back, and means for imparting oscillatory movement to the back, said means being carried by the back-supporting arm and independently actuated, substantially as set forth.

2. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a stepover movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a back-oscillating bar, carried by the back supporting arm and means independent of the back-supporting arm for imparting endwise movement to said bar, substantially as set forth.

3. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, and means for imparting differential movement to said bars with relation to the supportingarm, substantially as set forth.

4-. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, and means for imparting movement to said bars in opposite directions, substantially as set forth.

5. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory backsupporting arm having pivotal connection with the standard and with the back, a back-oscillating bar carried by the back-supporting arm and means independent of the back-supporting arm for imparting endwise movement to the said bar, the same comprising a pin and cam-guide connection between the lower end of said bar and the supporting-standard, substantially as set forth.

6. In a step-over car-seat, the combination of a supporting standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, and means for imparting differential movement to said bars, the same comprising a pin and cam-guide connection between the lower ends of said bars and the supporting -standard, substantially as set forth.

7. In a step-over car-seat, the combination of a supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm and means for imparting movement to said bars in opposite directions, the same comprising a pin and cam-guide connection between the lower ends of said bars and the supporting standard, substantially as set forth.

8. In a step-over car-seat, the combination of a supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, and an equalizing-bar pivoted to the supportingarm and to the lower ends of said bars, sub stantially as set forth.

9 In a step over car seat, the combination of a supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibrator backsupporting arm having pivotal connection with the standard and with the back, means for imparting oscillatory movement to the back, said means being carried by the back-supportin g arm and independently actuated, and means forimparting a movement to the seat coincident with the vibratory movement of the back, substantially as set forth.

10. In a step-over car-seat, the combination of a, supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, an eqnalizing bar pivoted to the supporting-arm and to the lower ends of said bars, and means for imparting a shifting movement to the seat, substantially as set forth.

11. In a step-over car-seat, the combination of a supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory back-supporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, an

equalizing-bar pivoted to the supporting-arm and to thelower ends of said bars, and stops arranged in the path of said bars and adapted to limit the oscillatory movement to the back, substantially as set forth.

12. In a step-over car-seat, the combination of a supporting-standard, a seat, a back adapted to have a step-over movement across the seat, a vibratory backsupporting arm having pivotal connection with the standard and with the back, a pair of back-oscillating bars independent of the supporting-arm, an equalizing-bar pivoted to the supporting-arms and to the lower ends of said bars, and camguides having stops or terminals, adapted to engage and impart endwise movement to said bars and an oscillatory movement to the back, substantially as set forth.

In testimony whereof witness my hand this 12th day of January, 1898.

CHARLES K. PIOKLES.

In presence of E. J. OBRIEN, ROBERT BURNS. 

